期刊
FEBS LETTERS
卷 583, 期 22, 页码 3549-3556出版社
WILEY
DOI: 10.1016/j.febslet.2009.10.040
关键词
Nucleolus; mRNA; Nuclear export; Herpesvirus
资金
- BBSRC [BB/F012101/1]
- Biotechnology and Biological Sciences Research Council [BB/D524875/1, BB/F012101/1] Funding Source: researchfish
- BBSRC [BB/F012101/1, BB/D524875/1] Funding Source: UKRI
Kaposi's sarcoma-associated herpesvirus (KSHV) ORF57 plays a pivotal role in mediating the nuclear export of KSHV intronless transcripts. We demonstrate that ORF57 localises and dynamically trafficks through the nucleolus. To assess if nucleolar shuttling of ORF57 is important for the export of intronless viral mRNA, the ability of ORF57 to export mRNA was assessed in cells where the nucleolus was disrupted using Actinomycin D or DRB. We show that rapid disorganisation of the nucleolus was accompanied by a reduction in intronless virus mRNA export, suggesting that an intact nucleolus is essential for efficient KSHV ORF57-mediated intronless mRNA export. Structured summary: MINT-7291377:Aly (uniprotkb:Q86V81) physically interacts (MI:0915) with ORF57 (uniprotkb:Q2HR75) by pull down (MI:0096) MINT-7291330, MINT-7291320:Nucleolin (uniprotkb:P19338) and ORF57 (uniprotkb:Q2HR75) colocalise (MI:0403) by fluorescence microscopy (MI:0416) MINT-7291715:ORF57 (uniprotkb:Q2HR75) and Aly (uniprotkb:Q86V81) colocalise (MI:0403) by fluorescence microscopy (MI:0416) (C) 2009 Federation of European Biochemical Societies. Published by Elsevier B. V. All rights reserved.
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